Huawei SmartLogger2000 User Manual page 61

SmartLogger2000
User Manual
Figure 4-24 Connecting the SmartLogger to multiple inverters
AC Power Cable Connection
Figure 4-25 shows the method for connecting the SmartLogger to multiple SUN2000s over an
AC power cable.
(2016-06-20)
A maximum of 200 devices can be connected to one SmartLogger. You are advised to connect fewer

than 30 devices to each RS485 route. Each SmartLogger can be connected to a maximum of 80
inverters.
If an EMI is to be connected, connect it at the end of the chain.

Set Build-out Resistor to Enable under Comm. Param. for the inverter at the end of each daisy

chain. For details, see SUN2000 APP User Manual.
The addresses for all devices in the daisy chain should be within the searching scope set in the

SmartLogger and they must differ from each other. Otherwise, the communications would fail
between the device and the SmartLogger.
You can perform the Assign Address operation on the built-in WebUI of the SmartLogger. If an

RS485 address conflict is detected for inverters, the SmartLogger automatically reassigns the
addresses without the need for local address upgrade for the inverters.
Baud rate of all the devices in one daisy chain should stay consistent with those of the

SmartLogger.
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4 Connecting Cables
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